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WARNING

CAUTION

Board Type Digital Temperature Controller 

BX8

Thank you for purchasing Hanyoung Nux products. Please read the instruction 

manual carefully before using this product, and use the product correctly. 

Also, please keep this instruction manual where you can view it any time.  

INSTRUCTION MANUAL

▍Safety information

   

DANGER

Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury

   

WARNING

Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury

   

CAUTION

Indicates a potentially hazardous situation which, if not avoided, may result in minor injury or property damage

Please read the safety information carefully before the use, and use the product correctly.

The alerts declared in the manual are classified into 

Danger, Warning

 and 

Caution

 according to their importance

The input/output terminals are subject to electric shock risk. Never let the input/output  terminals come in contact 

with  your body  or conductive substances.

DANGER

MA0204KE211029

28, Gilpa-ro 71beon-gil,  Michuhol-gu, 

Incheon, Korea TEL : +82-32-876-4697 

http://www.hanyoungnux.com

HANYOUNGNUX CO.,LTD

•The contents of this manual may be changed without prior notification.

•Any use of the product other than those specified by the 

 manufacturer may result in personal injury or property damage.

•If there is a possibility that a malfunction or abnormality of 

  this product may lead to a serious accident, install an 

  appropriate protection circuit on the outside and plan for 

  preventing accidents.

•Since this product is not equipped with a power switch and fuse,  

  install them separately on the outside (fuse rating: 250 VAC 0.5 A).    

•Please supply the rated power voltage, in order to prevent 

  product breakdowns or malfunctions. 

•To prevent electric shocks and malfunctions, do not supply 

  the power until the wiring is completed.

 •The product does not have an explosion-proof structure, 

   so avoid using it in places with flammable or explosive gases.

•Never disassemble, modify, process, improve or repair this product, 

  as it may cause abnormal operations, electric shocks or fires.   

•Do not touch the terminals to avoid electrical shock or malfunction.

•Please disassemble the product after turning OFF the power. 

  Failure to do so may result in electric shocks, product 

  abnormal operations or malfunctions. 

•We recommend regular maintenance for the continuous 

  safe use of this product.Some components of this product 

  may have a lifespan or deteriorate over time.

•The warranty period of this product, is 1 year, including its 

  accessories, under normal conditions of use.

•The ambient temperature exceeds 0 ~ 50 ℃

•The ambient humidity exceeds 20 ~ 90 % RH.

•Places where temperature changes suddenly or condensation occurs.

•Places exposed to corrosive gases 

(especially harmful gases, ammonia, etc.) or flammable gases.

•Places where vibrations and impacts are applied directly 

  to the product body.

•Places with liquids, oils, chemicals, steams, sunlight.

•Places with a lot of dirt, dust, salt, iron.

•Places where large inductive disturbance, static electricity, 

  magnetic noise can be generated easily.

•Places where heat accumulation occurs due to radiant heat, etc.

•This controller does not have outer case and is only 

  composed of PCB (printed circuit board)so you need special 

  attention when you install it to panel. Especially, when 

  insulated against iron plate, and oil or water leak inside the 

  panel, there is danger of fire, so inspection is required. 

•Use the predetermined compensating cable with thermocouple.

•For RTD input use a cable with small lead wire resistance 

  and without resistance difference among 3 wires.

•To avoid the inductive noise influence, separate input signal   

  wires from the power and load wires.

•Keep input wires away from output signal wires and 

  be sure to use shielded wires to ground.

•In places with a lot of noise, use the following procedure:   

 connect a surge absorber to the connector coil side if the magnet 

  connectors are connected to the relay contact output load. 

•When there is a lot of noise from the power, we recommend 

  to use insulation transformer and noise filter. Please install 

  the noise filter to a grounded panel or structure, etc. and  

  make the wiring of noise filter output and product 

  power supply terminals as short as possible. 

•The product power cables are effective when twisted and connected 

  (tightly twisting the power cables is effective against noise)

•For the heater break alarm, the heater power supply and the 

  controller power supply should be connected using the 

  same power cables when a heater break alarm.

•The preparation period of the contact output is required 

  during power supply. If used as a signal to external interlock 

  circuit, etc. please use a delay relay together. 

•Be careful during wiring, as this product has a narrower 

  distance among terminals, compared with other products.

•As the connection between the main board and the display 

  board of this product is a signal line,please install after 

  taking into consideration the insulation relationships, 

  so that there is not noise influence.

•If the operation frequency such as proportional operation is 

  high, connecting the load with the output relay rating without 

  room will shorten the service life, so use an extra relay. 

  In this case,SSR output type is recommended. 

·When using electromagnetic switch: the proportional cycle 

  is at least 30 seconds 

·When using SSR: he proportional cycle is at least 1 second

·Contact output life : Mechanical: min. 10 million times (no load)

   Electrical: min. 100 thousand times (rated load)

•SSR/current output: not electrically insulated from internal circuit.   

•If the alarm function is not set correctly, it will not be output in 

  case of abnormal operation,so please check it before operation.

•When the input (sensor) is disconnected, “b.out” 

  will be displayed on PV display. When replacing the sensor, 

  be sure to turn off the powery.

Suffix code

Model

Code

Information

BX8-

⃞ ⃞ 48×48 ㎜ Board Type Digital Temperature Controller

Control Type 0

Normal Type

1

Heating/Cooling

Optional

0 SV2/SV3

1 HBA

2 RS485

3 HBA/RS485

■ Input

Specification

Input

Thermocouple: K, J, E, T, R, B, S, L, N, U, WRe 5-26, PL-Ⅱ

RTD : Pt100 Ω, KPt100 Ω. 

Direct voltage : 1 - 5 V,  -10 - 20 ㎷,  0 - 100 ㎷ (free scale)

Sampling cycle 250 ㎳

Input resolution Below decimal point of measurement range

Input impedance Thermocouple and mV input: min. 1 ㏁, DC V: 1 ㏁

Allowable signal 

source resistance Thermocouple : max. 250 Ω,  Voltage : max. 2 kΩ

Lead wire tolerable

resistance

RTD: max. 10 Ω / 1 wire (but the conductor resistance among 3 wires should be the same)

Input tolerable voltage within ±10 V (T/C, RTD, Voltage : mV DC), ±20 V (Voltage : VDC)

Noise removal rate NMRR (Normal mode) : min. 40 dB (50/60 ㎐ ±1 %)

CMRR (Common mode) : min. 120 dB (50/60 ㎐ ±1 %)

Standard

T/C, RTD : KS, IEC, DIN

Standard junction temp. 

compensation tolerance ±1.5 ℃ (15 ~ 35 ℃),  ±2.0 ℃ (0 ~ 50 ℃)

BURN-OUT

T/C: OFF, UP/DOWN scale selectable. RTD : UP Scale

(detection current at thermocouple and RTD BURN-OUT: approx. 50 nA)

Accuracy

±0.5 % (FULL SCALE)

Input range

T/C and RTD are changeable within range of input signal and measurement range. 

DC voltage: min. voltage and max. voltage are changeable within each measurement range. 

Scaling available in the measurement range conditions

■ Output

Retransmission 

output

·Resolution : Approx. 3,000                  ·Sampling cycle : 250 ㎳ 

·Accuracy : ±0.5 % of max. scale (4 - 20 ㎃ range)

Alarm output

·Contact: 1a

·Point: 1 point  

·Output points: Refer to “Terminal Arrangement”

Control 

output 

Relay 

contact 

output

·Time resolution : 0.1 % or 10 ms (the smaller) 

·Proportional cycle : 1 ~ 1000 sec.  

·Output operation : time proportional, ON/OFF    

·Output limit : 0.0~100.0 % range, high limit(OH) or low limit(OL) (selectable also during AT)                 

·ON/OFF hysteresis : 0 ~ 100 % (Full scale)

Control 

output

SSR voltage 

pulse output

·Proportional cycle: 1 ~ 1,000 sec. 

·OFF voltage: max. 0.1 V d.c.

·Output operation:  time proportional

·Time resolution: 0.1 % or 10 ms (the smaller) 

·Output limit: 0.0~100.0 % range, high limit (OH) low limit(OL) (selectable also during AT)        

Current 

output  

(4-20 mA)

·Sampling time : 250 ms·Output operation : PID control

·Accuracy : ±0.5 % of full scale (4 - 20 mA range), Resolution : Approx. 3,000l

·Output ripple : max. 0.3 % (P-P) of max. scale (150 Hz)

·Output limit : -5.0 ~ 105.0 % range, high limit(OH) or low limit(OL) selectable also during AT)   

Function

※ Output type can be selected from relay, current or SSR, and heating/cooling types can be set  individually

Measurement 

input

·Input correction (Bias) : -100.0 ~ 100.0 % for instrument range 

                                         (desired correction value can be compensated for measured input value)

·Scaling : The measurement range can be scaled according to the setting of the maximum 

                 measurement range (SL-H) and minimum 

·measurement range (SL-L). Filter : OFF, 1 ~ 120 sec.

Control

·Number of PIDs per set value (SV): you can set up to 3 types of set values (SV) and select PID constants for each

·Auto-tuning : According to set value (Standard type, Low PV type)

·Proportional Band : 0.1 ~ 999.9 % (Max. range), 0.0 ~ 999.9 % (During heating - cooling control)

·Integral Time : OFF, 1 ~ 6000 sec. ·Derivative Time : OFF, 1 ~ 6000 sec.

·ON/OFF control : By selecting output code (OT) “0”

·PID selection : Zone PID/Auto 1, 2, 3 selectable

·Manual Reset : -5.0 ~ 105.0 % of output (valid when I=OFF)

·Direct / Reverse action : Changeable by parameter

·Emergency output value : -5.0 ~ 105.0 % of output value (normal type), 0.0~105.0 % (heating/cooling type)

·ON/OFF hysteresis (HYS) : 0.0 ~ 100.0 % of instrument range (valid when ON/OFF control is set)

·Heating/cooling dead band: -100.0 to 50.0% about output value

·Heating-Cooling hysteresis : -100.0 ~ 50.0 % of output value

·ARW (Anti Reset Wind-up) : AUTO, 50.0 ~ 200.0 %

·Fuzzy : ON/OFF selection by parameter

·Ramp: It is possible to set rising temperature and falling temperature gradients in hours or minutes when power is ON.

Retransmission 

output

·Transmission signal: process value (PV), set value (SV), output value (MV) selectable. 

                                     Sensor power supply (SPS) 24 V d.c.

·Continuous output (However, when retransmission output is used, the sensor power can not be used)    

·Scaling: Indication value, set value

Alarm output

·Set point: depends on specifications of each model (refer to connection diagram)

·Alarm types : High/Low process alarm, High/Low deviation alarm, Hold function of alarm, Heater break alarm 

                        (refer to alarm type and code)

·Setting range : Process alarm ...... 0 ~ 100 % of instrument range

                           Deviation alarm ...... -100 ~ 100 % of instrument range

·Alarm hysteresis : 0.0 ~ 100.0 % of instrument range

HBA 

·Current measurement range : 1 - 50 A a.c. (resolution: 0.5 A, ±5 % ±1 digit of FS)

·Alarm output : Selectable in alarm output ·Dead band: 0 ~ 100 % of max. range

·HBA is available during ON/OFF control or time proportional output 

 (but not during current output or cooling output)

·Break detection is not possible below 0.2 sec. during output on.     

Power supply

Power voltage

100 - 240 V a.c. (Voltage fluctuation rate : ±10 %)

Frequency

50/60 ㎐

Power consumption Max. 6.0 W, max. 10 VA

Insulation 

resistance

Between primary terminal and secondary terminal : min. 500 V d.c., 20 ㏁

Between primary terminal and ground : min. 500 V d.c., 20 ㏁

Between ground and secondary terminal : min. 500 V d.c., 20 ㏁

Dielectric strength

Between primary terminal and secondary terminal : 2,300 V a.c. 50/60 Hz for 1 min.

Between primary terminal and ground : 2,300 V a.c. 50/60 Hz for 1 min.

Between F•G and secondary terminal : 1,500 V a.c. 50/60 Hz for 1 min.

Sensor power supply 24 V d.c. 20 mA (but, it is not available in retransmission output)

Interface

Standard

EIA RS485

Max number of 

connections

31 addresses can be set from 1 to 99

Communication 

method

2-wire half-duplex

Synchronization Asynchronous

Communication 

sequence

None

Communication 

distance

Within 1.2 km

Communication speed 600, 1200, 2400, 4800, 9600 BPS (Speed is changeable by parameter setting)

START BIT

1 BIT

DATA BIT

7 or 8 BIT

PARITY BIT

None, even numbers, odd numbers

STOP BIT

1 or 2 BIT

PROTOCOL

PC LINK WITHOUT SUM(0), PC LINK WITH SUM(1)

Response time

Reception handling time + (Response time × 10 ms)

4-Ø4

제3설정(SV3)표시

제2설정(SV2)표시

제어출력(OUT)표시

설정치(SV)표시
측정치(PV)표시

경보2(AL2)표시

경보1(AL1)표시

오토튜닝(AT)표시

설정치 증가 키
설정치 감소 키
설정행 이동 키

모드진입/설정 키

표시부

Cable 26P

제어부

4-Ø4

4-Ø4

제3설정(SV3)표시

제2설정(SV2)표시

제어출력(OUT)표시

설정치(SV)표시
측정치(PV)표시

경보2(AL2)표시

경보1(AL1)표시

오토튜닝(AT)표시

설정치 증가 키
설정치 감소 키
설정행 이동 키

모드진입/설정 키

표시부

Cable 26P

제어부

4-Ø4

Power

100 - 240 VAC

F.G

B- B+ A

RTD

T.C

RTX+

SG

RTX-

DI2

(SV2)

OUT1

OUT1

SSR/SCR/RET

SSR/SCR/RET

CT

DI1(SV1)

OUT2

OUT2/AL2

AL1

▍Dimension

■ Display

■ Connection diagram

■ Control

■ Part name

※Cable length basically 300 ㎜

Display

Cable 26P

Control

Ø

Ø

The 3rd setting display

The 2nd setting display

Control output display

Set Value display
Process Value display

Alarm 2 display

Alarm 1 display

Auto-tuning display

Increase setting button
Decrease setting button
Shift setting button

mode/setting button

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